CN103478039A - Method of promoting early maturity of gonad in Myxocyprinusasiaticus - Google Patents
Method of promoting early maturity of gonad in Myxocyprinusasiaticus Download PDFInfo
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- CN103478039A CN103478039A CN201310449801.1A CN201310449801A CN103478039A CN 103478039 A CN103478039 A CN 103478039A CN 201310449801 A CN201310449801 A CN 201310449801A CN 103478039 A CN103478039 A CN 103478039A
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- water
- stimulation
- mullet
- fishpond
- running water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention relates to a method of promoting early maturity of gonad in Myxocyprinusasiaticus. The method includes: 1, selecting parent fishes; 2, cultivating the parent fishes; 3, promoting gonadal maturity by waterflow stimulation, namely when water temperature reaches more than 14 DEG C in early March, cultivating the parent fishes while using a floating pump as a power supply to drive water in an original tank; using in-tank circulating water formed by 0.1-0.5m/s unequal-speed water flows on the periphery of the tank to stimulate continuously for 15 days. Therefore, gonadal maturity of the parent fishes of Myxocyprinusasiaticus is promoted 5-8 days early. The method has the advantages that induced spawning rate of parent fishes, fertilization rate, hatching rate and fry breeding survival rate can be increased greatly.
Description
technical field:
The present invention is relevant with the method that promotes the fish Yearling, relevant with the method that promotes mullet sexual gland premature ripening especially.
background technology:
Mullet
myxocyprinus asiaticus(Bleeker), be subordinate to Cypriniformes
(Cypriniformes), Catostomidae
(Catostomidae), Myxocyprinus
(Myxocyprinusgill
).Local: yellow row, blood row, powder row, baked wheaten cake bream.Mullet mainly is distributed in the Yangtze river basin and tributary thereof, is listed in national second class protection animal, and important learning value is arranged on ichthyology and zoogeography.Being one of rare Endemic fish of China, is the large-scale economic fish in the Changjiang river, has a build large, and growth is fast, and meat is thick, the characteristics such as delicious, and its market value is higher, and the cultivation prospect is boundless.
For many years, the scientific worker has carried out a large amount of research work to mullet at aspects such as biology, ecology, artificial propagation, cultural technique, disease controls.Mullet natural spawning field mainly is distributed in that Upper Yangtze River is dry, tributary, ripely individually passes up to upstream more and lays eggs. and the mullet age at sexual maturity is slower, reaches sexual maturity parent population individuality very large, and general raun need be more than 8 ages, and milter is more than 7 ages.The fish that mullet is the breeding in spring, early, spawning season is that late March is to late April to the spawning season of mullet.When under natural conditions, mullet lays eggs in a large number, water temperature is 14～16 ℃, in flowing water environment, breeds, and spawning ground is distributed on dam, beach along the river more, and current are more rapid, the fluidised form disorder, and substrate is grit.Rareness along with wild resource, raise and train on the interior pool of mullet, artificial propagation etc. carried out more research, propagate mullet gonadal maturation technology artificially at Nei Tang up till now unstable, the ovum and the sperm quality that obtain are not high, and also not carrying out so far the mullet parent population both at home and abroad stimulates the mullet sexual gland to do sth. in advance the fully-developed report at not water filling of cultivation Chi Yuanchi generation current.Therefore, reach sexually matured mullet parent population propagating artificially under condition to cultivate, after cultivating by fortification, mating season is at former pond generation stimulation by running water, make mullet sexual gland premature ripening, thereby improve the parent population spawning rate, obtain ovum and the sperm of high-quality, improve fertility rate and hatchability, improve the seed rearing survival rate, saving water resource, reduce aquaculture cost simultaneously, increases culture benefit.
Under current most Technique in Fishes cultivating condition, the main tradition bath generation mating season stimulation by running water that passes through promotes gonad development, fish in the stimulation by running water gonad development, overwhelming majority individual relative is less, and age at sexual maturity is morning, generally about 3 one 4 ages, shorter to the flowing water stimulation time, flow velocity is less, and is all by injecting new water, and producing current in the mode of changing water stimulates the parent population gonad development.Also adopt the new water generates stimulation by running water of traditional injection gonad development in the artificial breeding of mullet at present.Because the mullet age at sexual maturity is slower, reach sexual maturity parent population individuality very large, more than general raun needed for 8 ages, milter, more than 7 ages, promotes that to stimulation by running water gonad development requires higher.
Existing tradition bath produces current stimulates mullet gonad development technology, make the mullet gonadal maturation time long, reach maturity not bery desirable, it is undesirable that parent population synchronously reaches sexual maturity, and the ovum and the sperm quality that obtain are poor, and spawning rate is low, fertility rate and hatchability is low, the young plant cultivating survival rate is low, has also caused a large amount of water resource waste simultaneously, has increased aquaculture cost, the problem such as area that water resource is not abundant is restricted.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, a kind of method that can greatly improve the promotion mullet parent population gonad maturity of parent population spawning rate, fertilization rate, incubation rate, seed rearing survival rate is provided.
The object of the present invention is achieved like this:
The present invention promotes the method for mullet sexual gland premature ripening, and the method comprises the following steps:
1) parent population is selected: select to propagate artificially to reach the sexual maturity parent population, raun is more than 8 ages, and milter is more than 7 ages, and body weight is 8-18Kg;
2) parent fish rearing: in annual October-November, to put into the depth of water by 2.5～3.53:1, density with 200-250g/ ㎡ by the male and female parent population after reinforced cultivating and at least carry out feeding and management in the 1.2m fishpond, at the beginning of 3 months next year, when water temperature is raised to more than 14 ℃, interpolation be take the water earthworm as main animal bait, day, addition was 1.5%-2% of parent population body weight, and adding by weight weight in the manufactured feed of throwing something and feeding is respectively 0.1%-0.2% of manufactured feed weight; Vitamin C and vitamin E;
3) stimulation by running water accelerating sexual gland: at the beginning of 3 months next year, when water temperature is raised to more than 14 ℃ parent fish rearing, floating pump in water-spraying oxygen-increasing machine is fixed on to 1/3 of fishpond length, 1/3 place of fishpond width, the floating pump delivery port is at the depth of water 40-50cm place, delivery port and pool wall form 30-40 degree angles, and delivery port towards northwest to, carry out at least 12 hours stimulation by running water every day, with floating pump as power, at former pond impulsion water body, the fishpond periphery forms not uniform flow current of 0.1-0.5m/s, form circulation stimulation by running water in pond, stimulation by running water is at least 15 days continuously, to promote mullet parent population gonadal maturation 5-8 days ahead of time, each stimulation by running water is without water filling.
One of 0.75KW water-spraying oxygen-increasing machine floating pump for above-mentioned area fishpond below 1 mu, one of the water-spraying oxygen-increasing machine floating pump of 1.1-1.5KW for 1-2 mu of fishponds.
Above-mentioned every morning 8:00 to afternoon 6:00, evening 01:00 carry out stimulation by running water to 03:00.
The present invention is by propagating artificially, under condition, mullet parent population fortification cultivation is rear, former pond produces stimulation by running water on the interior pool to utilize floating pump, completing smoothly sexual gland was grown by 3 phases to 4 phases, and finally make the parent population sexual gland reach maturity ahead of time, thereby mullet is laid eggs and produce essence the time also to shift to an earlier date, parent population spawning rate, fertilization rate, incubation rate, seed rearing survival rate are improved.Saving water resource, for the not abundant zone of water resource can make stimulation by running water make the parent population gonad development equally, and can reach maturity ahead of time.According to the induced spawning method step, hastened parturition, the parent population spawning rate can reach 95%, and fertilization rate can reach more than 90%, and incubation rate can reach more than 90%, and the seed rearing survival rate can reach more than 90%.With the parent population that tradition bath stimulation by running water is cultivated, compare, gonad maturity 5-8 days ahead of time, spawning rate, fertilization rate, incubation rate and seed rearing survival rate all improve more than 20%.As in 1 mu of 1 meter depth of water fishpond, wash by water every day 4 hours, change water 100-200% every day, but the about 10005-20010m3 of the present invention's saving water resource.Utilizing the former pond of floating pump to produce current stimulates the mullet gonad development, makes the sexual gland ripen in advance of mullet and improves spawning rate, has shortened sexual maturity time breeding period, has saved water resource simultaneously, reduces aquaculture cost, increases culture benefit, applied widely.
embodiment:
The present embodiment promotes the method for mullet parent population gonad maturity, comprises the following steps:
1, parent population is selected: select to propagate artificially to reach the sexual maturity parent population, raun is more than 8 ages, and milter is more than 7 ages, and body weight is 8-18Kg;
2, parent fish rearing: in annual October-November, will press 3:1 by the male and female parent population after reinforced cultivating, density is put into depth of water 1.2m fishpond with 225g/ ㎡ and is carried out feeding and management.At the beginning of 3 months next year, when water temperature is raised to more than 14 ℃, adds and take the water earthworm as main animal bait,, a day addition is 1.8% of fish body weight, adding weight in the manufactured feed of throwing something and feeding is respectively vitamin C and the vitamin E of manufactured feed weight 0.15%;
3, stimulation by running water accelerating sexual gland:
1) utilize the main water-spraying oxygen-increasing machine formed by floating pump, Aerating nozzle, tube connector in the parent fish rearing pond, Aerating nozzle and tube connector are removed and only stayed the power source that floating pump is usingd as formation flowing water, one of 0.75KW water-spraying oxygen-increasing machine floating pump for general area fishpond below 1 mu, one of the water-spraying oxygen-increasing machine floating pump of 1.1-1.5KW for 1-2 mu of fishponds;
2) floating pump is fixed on fishpond length 1/3,1/3 place of fishpond width, delivery port is at depth of water 45cm place, delivery port and pool wall form 35 degree angles and delivery port towards northwest to;
3) stimulation by running water promotes gonadal maturation: at the beginning of 3 months next year, when water temperature is raised to the parent fish rearing while more than 14 ℃, floating pump is fixed, carry out stimulation by running water every day, be no less than 12 hours every day, be every morning 8:00 to afternoon 6:00, evening 01:00 to 03:00, each stimulation by running water is without water filling, just use floating pump as power, at former pond impulsion water body, the fishpond periphery forms not uniform flow current of 0.1-0.5m/s, forms circulation stimulation by running water in pond, stimulation by running water is 15 days continuously, will promote mullet parent population gonadal maturation 5-8 days ahead of time;
4) according to the induced spawning method step, hastened parturition, the parent population spawning rate can reach 95%, and fertilization rate can reach more than 90%, and incubation rate can reach more than 90%, and the seed rearing survival rate can reach more than 90%.
Above-described embodiment is that foregoing of the present invention is further described, but this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to above-described embodiment.All technology realized based on foregoing all belong to scope of the present invention.
Claims (3)
1. promote the method for mullet sexual gland premature ripening, the method comprises the following steps:
1) parent population is selected: select to propagate artificially to reach the sexual maturity parent population, raun is more than 8 ages, and milter is more than 7 ages, and body weight is 8-18Kg;
2) parent fish rearing: in annual October-November, will be by the male and female parent population after reinforced cultivating by 2.5～3.53:1, density be 200-250g/ ㎡ put into the depth of water at least the 1.2m fishpond, carry out feeding and management, at the beginning of 3 months next year, when water temperature is raised to more than 14 ℃, interpolation be take the water earthworm and is main animal bait, and day addition is for carrying 1.5%-2% of fish body weight, and adding weight in the manufactured feed of throwing something and feeding is respectively 0.1%-0.2% vitamin C and vitamin E of manufactured feed weight;
3) stimulation by running water accelerating sexual gland: at the beginning of 3 months next year, when water temperature is raised to more than 14 ℃, parent fish rearing simultaneously, floating pump in water-spraying oxygen-increasing machine is fixed on to 1/3 of fishpond length, 1/3 place of fishpond width, the floating pump delivery port is at the depth of water 40-50cm place, delivery port and pool wall form 30-40 degree angles and delivery port towards northwest to, carry out the stimulation by running water of at least 12 hours every day, each stimulation by running water with floating pump as power at former pond impulsion water body, make the fishpond periphery form not uniform flow current of 0.1-0.5m/s, thereby circulation stimulation by running water in the formation pond, stimulation by running water is at least 15 days continuously, to promote mullet parent population gonadal maturation 5-8 days ahead of time.
2. the method for promotion as claimed in claim 1 mullet sexual gland premature ripening, is characterized in that one of 0.75KW water-spraying oxygen-increasing machine floating pump for area fishpond below 1 mu, one of the water-spraying oxygen-increasing machine floating pump of 1.1-1.5KW for 1-2 mu of fishponds.
3. the method for promotion as claimed in claim 1 or 2 mullet sexual gland premature ripening, it is characterized in that every morning 8:00 to afternoon 6:00, evening 01:00 carry out stimulation by running water to 03:00.
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|---|---|---|---|
| CN201310449801.1A CN103478039B (en) | 2013-09-29 | 2013-09-29 | Method of promoting early maturity of gonad in Myxocyprinusasiaticus |
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| CN201310449801.1A CN103478039B (en) | 2013-09-29 | 2013-09-29 | Method of promoting early maturity of gonad in Myxocyprinusasiaticus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104170778A (en) * | 2014-08-18 | 2014-12-03 | 永丰一帆水产科技有限公司 | Large-scale common sucker breeding method capable of controlling temperature of circulating water |
| CN114916474A (en) * | 2022-05-24 | 2022-08-19 | 昆明市水产科学研究所 | Artificial breeding method for Pseudobagrus Zhongguchi |
Citations (3)
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|---|---|---|---|---|
| JPH0568445A (en) * | 1991-09-13 | 1993-03-23 | Seiko Sangyo Kk | Method for artificially filling up sea urchin gonad |
| CN1943327A (en) * | 2006-10-13 | 2007-04-11 | 四川省农业科学院水产研究所 | Early breeding cultivating method of silurus meridionalis chen parent fish |
| CN101411311A (en) * | 2008-12-05 | 2009-04-22 | 河北农业大学 | Method for producing fingerling of Trachidermus fasciatus |
-
2013
- 2013-09-29 CN CN201310449801.1A patent/CN103478039B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0568445A (en) * | 1991-09-13 | 1993-03-23 | Seiko Sangyo Kk | Method for artificially filling up sea urchin gonad |
| CN1943327A (en) * | 2006-10-13 | 2007-04-11 | 四川省农业科学院水产研究所 | Early breeding cultivating method of silurus meridionalis chen parent fish |
| CN101411311A (en) * | 2008-12-05 | 2009-04-22 | 河北农业大学 | Method for producing fingerling of Trachidermus fasciatus |
Non-Patent Citations (2)
| Title |
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| 王汉平等: "人工诱导池养3+龄鲥鱼性腺发育的初步试验与探讨", 《淡水渔业》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104170778A (en) * | 2014-08-18 | 2014-12-03 | 永丰一帆水产科技有限公司 | Large-scale common sucker breeding method capable of controlling temperature of circulating water |
| CN114916474A (en) * | 2022-05-24 | 2022-08-19 | 昆明市水产科学研究所 | Artificial breeding method for Pseudobagrus Zhongguchi |
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